Results 71 to 80 of about 782 (181)

First-Principles Theory of Flexoelectricity [PDF]

, 2016
56 pages, 12 figures, 7 tables. To be published in "Flexoelectricity in Solids: From Theory to Applications", A.K. Tagantsev and P. Yudin, eds. (World Scientific, Singapore)
Stengel, Massimiliano, Vanderbilt, David
openaire   +2 more sources

Flicker minimization in power-saving displays enabled by measurement of difference in flexoelectric coefficients and displacement-current in positive dielectric anisotropy liquid crystals

Opto-Electronic Advances
Balancing high display performance with energy efficiency is crucial for global sustainability. Lowering operating frequencies—such as enabling 1 Hz operation in fringe-field switching (FFS) liquid crystal displays—reduces power consumption but is ...
Junho Jung, HaYoung Jung, GyuRi Choi, HanByeol Park, Sun-Mi Park, Ki-Sun Kwon, Heui-Seok Jin, Dong-Jin Lee, Hoon Jeong, JeongKi Park, Byeong Koo Kim, Seung Hee Lee, MinSu Kim   +12 more
doaj   +1 more source

Local Structural Signatures of Shear Bands in Metallic Glasses via Electron Nanodiffraction

Small Methods, Volume 10, Issue 15, 7 August 2026.
In this research, we employed scanning electron nano‐diffraction to investigate the local degree of centrosymmetry and structural anisotropy (strain) in deformed metallic glass. The study provides significant new insights into the deformation mechanisms of glassy materials, revealing the nature of local structural transformations and demonstrating how ...
Huyen T. Pham, Daniel East, Chunguang Tang, Matteo Baggioli, Alessio Zaccone, Timothy C. Petersen, Amelia C. Y. Liu   +6 more
wiley   +1 more source

Quantification of flexoelectricity in PbTiO3/SrTiO3 superlattice polar vortices using machine learning and phase-field modeling

Nature Communications, 2017
Flexoelectric coupling between strain gradients and polarization influences the physics of ferroelectric devices but it is difficult to directly probe its effects. Here, Li et al.
Q. Li, C. T. Nelson, S.-L. Hsu, A. R. Damodaran, L.-L. Li, A. K. Yadav, M. McCarter, L. W. Martin, R. Ramesh, S. V. Kalinin   +9 more
doaj   +1 more source

Enhanced flexoelectricity in PVDF/AgNbO3 composite films for flexible sensor

Journal of Materiomics
Flexible polymers have garnered significant interest in the field of flexoelectricity due to their capacity to endure substantial strain gradients. However, the flexoelectric coefficients of these polymers are generally lower than those of ferroelectric ...
Yichong Chen, Yingzhuo Lun, Chaobo Liang, Honghe Yao, Maohong Li, Tingjun Wang, Cheng Zhu, Yingtao Zhao, Jiawang Hong, Xueyun Wang   +9 more
doaj   +1 more source

Measuring Direct Flexoelectricity at the Nanoscale

IEEE Electron Device Letters
Flexoelectricity is a property of all dielectric materials, where inhomogeneous strain induces electrical polarization. This effect becomes particularly prominent at the nanoscale where larger strain gradients can be obtained. While flexoelectric charges have been measured in mm-scale systems, direct measurements in nanoscale-thickness materials have ...
Daniel Moreno-Garcia, Luis Guillermo Villanueva   +1 more
openaire   +3 more sources

Flexoelectricity in oxide thin films

Journal of Advanced Dielectrics
Flexoelectric effect describes the electromechanical coupling between the strain gradient and its internal polarization in all dielectrics. Despite this universality, the resulting flexoelectric field remains small at the macroscopic level.
Guoyang Shen, Renhong Liang, Zhiguo Wang, Zhiyong Liu, Longlong Shu   +4 more
doaj   +1 more source

Electromechanical analysis of bilayer piezoelectric sensors due to flexoelectricity and strain gradient elasticity

AIP Advances, 2019
The flexoelectric effect of materials, which is the coupling between strain gradient and electric polarization, is most noticeable for the micro/nano electromechanical systems.
Y. X. Su, Z. D. Zhou, F. P. Yang
doaj   +1 more source

Flexoelectricity in a metal/ferroelectric/semiconductor heterostructure

AIP Advances, 2018
The flexoelectricity in a 100 nm-thick BaTiO3 (BTO) thin film based metal/ferroelectric insulator/semiconductor (MFS) heterostructure was reported in this letter.
Shujin Huang, Hei-Man Yau, Hyeonggeun Yu, Lu Qi, Franky So, Ji-Yan Dai, Xiaoning Jiang   +6 more
doaj   +1 more source

Flexoelectricity of model and living membranes

Biochimica et Biophysica Acta (BBA) - Biomembranes, 2002
The theory and experiments on model and biomembrane flexoelectricity are reviewed. Biological implications of flexoelectricity are underlined. Molecular machinery and molecular electronics applications are pointed out.
openaire   +2 more sources